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Ask HN: How do CDNs work?
Ok, there is a geographically diverse high speed network. But, how does you browser know which server to go to as there is a single URL? Is there some DNS magic going on?
- jgeorge 15y agoThe first server you hit does a geographic lookup of your IP address to get a reasonable estimation of where you are, then redirects you to a CDN server that's closest to you on the network. http://whatismyipaddress.com/ http://whatismyipaddress.com/ shows you where in the world the net thinks your IP address is. There are a bunch of geolocation services out there.